<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            height: 100vh;
        }

        img {
            height: 85px;
            width: 70px;
            position: fixed;
            top: 25px;

        }

        .Pop {
            width: 100%;
            height: 100%;
            background-color: #00000040;
            z-index: 999999;
            display: none;
        }

        .cencer {
            width: 400px;
            height: 300px;
            background: #fff;
            border-radius: 10px;
            box-sizing: border-box;
            padding: 10px;
            display: flex;
            flex-direction: column;
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            z-index: 999999;
        }

        .dialog_title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 40px;
            border-bottom: 1px solid #e0e0e0;
        }

        .dialog_title .close {
            font-size: 30px;
            cursor: pointer;
        }

        .dialog_content {
            display: flex;
            align-items: center;
            justify-content: center;
            flex: 1;
        }
    </style>
</head>

<body>
    <div class="Pop">
        <div class="cencer">
            <div class="dialog_title">
                <div class="text">恭喜中奖</div>
                <div class="close">x</div>
            </div>
            <div class="dialog_content">
                恭喜中的三等奖
            </div>
        </div>
    </div>
</body>
<script>
    let { innerWidth, innerHeight } = window, imgg = null;

    function envelope() {
       
        let signx = parseInt(Math.random() * (innerWidth - 70));
        let img = document.createElement("img");
        console.log(img)
        img.src = "./hb.png";
        img.style = `
        left:${signx}px;
        top:-85px;
        `
        console.log(signx);
        $("body").appendChild(img)
        vertical(img);
        //红包点击事件
        img.onclick = function () {
            //循环将垂直计时器暂停
            _("img").forEach(function (v) {
                clearInterval(v.ininid)
            })
            //暂停红包生成
            clearInterval(generate)
            //将弹窗显示
            $(".Pop").style = `display: block;`
            imgg = img;
            random();
        }
        
    }
  
    function vertical(img) {
        img.ininid = setInterval(function () {
            let yy = parseInt(img.style.top);
            if (yy >= innerHeight) {
                $("body").removeChild(img)
                clearInterval(img.ininid)
            } else {
                img.style.top = ` ${yy + 10}px `
                console.log(1)
            }
        }, 200)
    }
    //随机中将函数
    function random() {
        let shuji = Math.random() * 1;
        if (shuji < 0.1) {
            $(".dialog_content").innerText = "一等奖";
        } else if (shuji < 0.3 && shuji > 0.1) {
            $(".dialog_content").innerText = "二等奖";
        } else {
            $(".dialog_content").innerText = "三等奖";
        }
    }

    //关闭窗体
    $(".close").onclick = function () {
        $(".Pop").style.display = "none"
        $("body").removeChild(imgg);
        clearInterval(imgg.ininid)
        _("img").forEach(function (v) {
            vertical(v)
        })
        generate1()
    }
    let generate = null;

    function generate1() {
        generate = setInterval(function () {
            envelope()
        }, 500)
    }
    generate1()
    function $(name) {
        return document.querySelector(name);
    }
    function _(name) {
        return document.querySelectorAll(name);
    }
</script>

</html>